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UltraGrid/test/test_net_udp.c

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/*
* FILE: test_net_udp.c
* AUTHORS: Colin Perkins
*
* Copyright (c) 2004 University of Glasgow
* Copyright (c) 2000 University College London
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, is permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Science
* Department at University College London
* 4. Neither the name of the University nor of the Department may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include "config_unix.h"
#include "config_win32.h"
#ifndef WIN32
#include <sys/wait.h>
#endif
#include "debug.h"
#include "rtp/net_udp.h"
#include "test_net_udp.h"
#define BUFSIZE 1024
static void randomize(char buf[], int buflen)
{
int i;
for (i = 0; i < buflen; i++) {
buf[i] = (lrand48() && 0xff00) >> 8;
}
}
int test_net_udp(void)
{
struct timeval timeout;
socket_udp *s1, *s2;
char buf1[BUFSIZE], buf2[BUFSIZE];
const char *hname;
int rc, i;
#ifndef WIN32
/* "BSD" bug test that appears in this function uses fork and
* exec, that are not present on WIN32. Since the original
* bug has not been seen on Win32 it's probably not worth
* converting to use CreateProcess() */
int status_parent, status_child;
#endif /* WIN32 */
srand48(time(NULL));
/**********************************************************************/
/* The first test is to loopback a packet to ourselves... */
printf
("Testing UDP/IP networking (IPv4 loopback) ................................ ");
fflush(stdout);
s1 = udp_init("127.0.0.1", 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
randomize(buf1, BUFSIZE);
randomize(buf2, BUFSIZE);
if (udp_send(s1, buf1, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot send packet");
goto abort_loopback;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_loopback;
}
if (rc == 0) {
printf("FAIL\n");
printf(" No data waiting\n");
goto abort_loopback;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_loopback;
}
if (udp_recv(s1, buf2, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Receive failed");
goto abort_loopback;
}
if (memcmp(buf1, buf2, BUFSIZE) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_loopback;
}
printf("Ok\n");
abort_loopback:
hname = udp_host_addr(s1); /* we need this for the unicast test... */
udp_exit(s1);
/**********************************************************************/
/* Now we send a packet to ourselves via our real network address... */
printf
("Testing UDP/IP networking (IPv4 unicast) ................................. ");
fflush(stdout);
s1 = udp_init(hname, 5004, 5005, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
s2 = udp_init(hname, 5005, 5004, 1, 0, false);
if (s2 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
randomize(buf1, BUFSIZE);
randomize(buf2, BUFSIZE);
if (udp_send(s1, buf1, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot send");
goto abort_unicast;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
udp_fd_set(s2);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_unicast;
}
if (rc == 0) {
printf("FAIL\n");
printf(" No data waiting (no route to %s?)\n", hname);
goto abort_unicast;
}
if (!udp_fd_isset(s2)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_unicast;
}
if (udp_recv(s2, buf2, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot receive");
goto abort_unicast;
}
if (memcmp(buf1, buf2, BUFSIZE) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_unicast;
}
printf("Ok\n");
abort_unicast:
udp_exit(s1);
udp_exit(s2);
/**********************************************************************/
/* Loopback a packet to ourselves via multicast... */
printf
("Testing UDP/IP networking (IPv4 multicast) ............................... ");
fflush(stdout);
s1 = udp_init("224.2.0.1", 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
randomize(buf1, BUFSIZE);
randomize(buf2, BUFSIZE);
if (udp_send(s1, buf1, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot send");
goto abort_multicast;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_multicast;
}
if (rc == 0) {
printf("FAIL\n");
printf(" No data waiting (no multicast loopback route?)\n");
goto abort_multicast;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_multicast;
}
if (udp_recv(s1, buf2, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot receive");
goto abort_multicast;
}
if (memcmp(buf1, buf2, BUFSIZE) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_multicast;
}
printf("Ok\n");
abort_multicast:
udp_exit(s1);
/**********************************************************************/
/* Loopback a packet to ourselves via multicast, checking lengths... */
printf
("Testing UDP/IP networking (IPv4 length check) ............................ ");
fflush(stdout);
s1 = udp_init("224.2.0.1", 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
for (i = 1; i < BUFSIZE; i++) {
randomize(buf1, i);
randomize(buf2, i);
if (udp_send(s1, buf1, i) < 0) {
printf("FAIL\n");
perror(" Cannot send");
goto abort_length;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_length;
}
if (rc == 0) {
printf("FAIL\n");
printf
(" No data waiting (no multicast loopback route?)\n");
goto abort_length;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_length;
}
if (udp_recv(s1, buf2, BUFSIZE) != i) {
printf("FAIL\n");
perror(" Cannot receive");
goto abort_length;
}
if (memcmp(buf1, buf2, i) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_length;
}
}
printf("Ok\n");
abort_length:
udp_exit(s1);
#ifdef HAVE_IPv6
/**********************************************************************/
/* The first test is to loopback a packet to ourselves... */
printf
("Testing UDP/IP networking (IPv6 loopback) ................................ ");
fflush(stdout);
s1 = udp_init("::1", 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
randomize(buf1, BUFSIZE);
randomize(buf2, BUFSIZE);
if (udp_send(s1, buf1, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot send");
goto abort_loopback_ipv6;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_loopback_ipv6;
}
if (rc == 0) {
printf("FAIL\n");
printf(" No data waiting\n");
goto abort_loopback_ipv6;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_loopback_ipv6;
}
if (udp_recv(s1, buf2, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot receive");
goto abort_loopback_ipv6;
}
if (memcmp(buf1, buf2, BUFSIZE) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_loopback_ipv6;
}
printf("Ok\n");
abort_loopback_ipv6:
udp_exit(s1);
/**********************************************************************/
/* Loopback a packet to ourselves via multicast. The address is the */
/* SAP address, but we use a different port. */
printf
("Testing UDP/IP networking (IPv6 multicast) ............................... ");
fflush(stdout);
const char *iface = NULL;
#ifdef HAVE_MACOSX
iface = "en0";
#endif
s1 = udp_init_if("ff01::2:7ffe", iface, 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("FAIL\n");
printf(" Cannot initialize socket\n");
return 1;
}
randomize(buf1, BUFSIZE);
randomize(buf2, BUFSIZE);
if (udp_send(s1, buf1, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot send");
goto abort_multicast_ipv6;
}
timeout.tv_sec = 1;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Select failed");
goto abort_multicast_ipv6;
}
if (rc == 0) {
printf("FAIL\n");
printf(" No data waiting (no multicast loopback route?)\n");
goto abort_multicast_ipv6;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" No data on file descriptor\n");
goto abort_multicast_ipv6;
}
if (udp_recv(s1, buf2, BUFSIZE) < 0) {
printf("FAIL\n");
perror(" Cannot receive");
goto abort_multicast_ipv6;
}
if (memcmp(buf1, buf2, BUFSIZE) != 0) {
printf("FAIL\n");
printf(" Buffer corrupt\n");
goto abort_multicast_ipv6;
}
hname = udp_host_addr(s1); /* we need this for the unicast test... */
printf("Ok\n");
abort_multicast_ipv6:
udp_exit(s1);
#else
printf
("Testing UDP/IP networking (IPv6 loopback) ................................ --\n");
printf
("Testing UDP/IP networking (IPv6 unicast) ................................. --\n");
printf
("Testing UDP/IP networking (IPv6 multicast) ............................... --\n");
#endif
/**********************************************************************/
#ifdef WIN32
printf
("Testing UDP/IP networking (FreeBSD bug) .................................. --\n");
#else
printf
("Testing UDP/IP networking (FreeBSD bug) .................................. ");
fflush(stdout);
status_parent = 0;
randomize(buf1, 64);
s1 = udp_init("224.2.0.1", 5004, 5004, 1, 0, false);
if (s1 == NULL) {
printf("fail (parent): cannot initialize socket\n");
return 1;
}
rc = fork();
if (rc == -1) {
printf("fail: cannot fork\n");
goto abort_bsd;
} else if (rc == 0) {
/* child */
s2 = udp_init("224.2.0.1", 5004, 5004, 1, 0, false);
if (s2 == NULL) {
printf("FAIL\n");
printf(" Child cannot initialize socket\n");
exit(0);
}
if (udp_send(s2, buf1, 64) < 0) {
printf("FAIL\n");
perror(" Child cannot send");
exit(0);
}
timeout.tv_sec = 10;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s2);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Child select");
exit(0);
}
if (rc == 0) {
printf("FAIL\n");
printf
(" Child: no data waiting (no multicast loopback route?)\n");
exit(0);
}
if (!udp_fd_isset(s2)) {
printf("FAIL\n");
printf(" Child: no data on file descriptor\n");
exit(0);
}
rc = udp_recv(s2, buf2, BUFSIZE);
if (rc < 0) {
printf("FAIL\n");
perror(" Child cannot receive");
exit(0);
}
if (rc != 64) {
printf("FAIL\n");
printf(" Child: read size incorrect (%d != %d)\n", rc,
64);
exit(0);
}
if (memcmp(buf1, buf2, 64) != 0) {
printf("FAIL\n");
printf(" Child: buffer corrupt\n");
exit(0);
}
udp_exit(s2);
exit(1);
} else {
/* parent */
timeout.tv_sec = 10;
timeout.tv_usec = 0;
udp_fd_zero();
udp_fd_set(s1);
rc = udp_select(&timeout);
if (rc < 0) {
printf("FAIL\n");
perror(" Parent select");
goto abort_bsd;
}
if (rc == 0) {
printf("FAIL\n");
printf
(" Parent: no data waiting (no multicast loopback route?)\n");
goto abort_bsd;
}
if (!udp_fd_isset(s1)) {
printf("FAIL\n");
printf(" Parent: no data on file descriptor\n");
goto abort_bsd;
}
rc = udp_recv(s1, buf2, BUFSIZE);
if (rc < 0) {
printf("FAIL\n");
perror(" Parent cannot receive");
goto abort_bsd;
}
if (rc != 64) {
printf("FAIL\n");
printf(" Parent: read size incorrect (%d != %d)\n", rc,
64);
goto abort_bsd;
}
if (memcmp(buf1, buf2, 64) != 0) {
printf("FAIL\n");
printf(" Parent: buffer corrupt\n");
goto abort_bsd;
}
status_parent = 1;
}
abort_bsd:
wait(&status_child);
if (status_parent && status_child) {
printf("Ok\n");
}
udp_exit(s1);
#endif /* WIN32 */
return 0;
}
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